18 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Herka, Jakub | Michalska, Aleksandra | 1/2-1/2 | A45 | exe:Slovakia open Bratislava 25 | 2025-09-20 |
| Herka, Jakub | Osvald, David | 1-0 | E05 | exe:Slovakia open Bratislava 25 | 2025-09-18 |
| Herka, Jakub | Dovgaliuk, Oleksandr | 0-1 | D20 | exe:Slovakia open Bratislava 25 | 2025-09-16 |
| Herka, Jakub | Koelber, Daniel | 0-1 | D85 | exe:Slovakia open Bratislava 25 | 2025-09-14 |
| Herka, Jakub | Dobosiewicz, Dawid | 1/2-1/2 | A94 | II DMP Juniorow | 2025-06-25 |
| Herka, Jakub | Grzebieniowski, Michal | 1/2-1/2 | E04 | II DMP Juniorow | 2025-06-22 |
| Herka, Jakub | Lapczynski, Jacek | 1-0 | D02 | II DMP Juniorow | 2025-06-20 |
| Herka, Jakub | Semenowicz, Julian | 1/2-1/2 | D20 | II DMP Juniorow | 2025-06-18 |